The term “terrace garden” can refer to two different types of gardens. In one sense, a terrace garden is a garden which is established on a terrace, roof, or patio, usually in a house where there is limited gardening space. These types of gardens are especially popular in urban areas, and they are sometimes used in restaurants and other establishments as well. A terrace garden can also be a garden which is built in a series of raised or “terraced” beds against a hillside. Terrace agriculture is often the only way to utilize steep land, and some very ancient examples of terrace gardens can be found in South America and Asia.